* Referred from linux kernel -github/torvalds/linux/include/uapi/linux/fcntl.h
* Copyright (c) Zilogic Systems Pvt. Ltd., 2018
* Email: code@zilogic.com
*/
#ifndef LAPI_STAT_H__
#define LAPI_STAT_H__
#include <stdint.h>
#include <unistd.h>
#include <sys/stat.h>
#include "lapi/syscalls.h"
* Timestamp structure for the timestamps in struct statx.
*
* tv_sec holds the number of seconds before (negative) or after (positive)
* 00:00:00 1st January 1970 UTC.
*
* tv_nsec holds a number of nanoseconds (0..999,999,999) after the tv_sec time.
*
* __reserved is held in case we need a yet finer resolution.
*/
#ifndef HAVE_STRUCT_STATX_TIMESTAMP
struct statx_timestamp {
int64_t tv_sec;
uint32_t tv_nsec;
int32_t __reserved;
};
#endif
* Structures for the extended file attribute retrieval system call
* (statx()).
*
* The caller passes a mask of what they're specifically interested in as a
* parameter to statx(). What statx() actually got will be indicated in
* st_mask upon return.
*
* For each bit in the mask argument:
*
* - if the datum is not supported:
*
* - the bit will be cleared, and
*
* - the datum will be set to an appropriate fabricated value if one is
* available (eg. CIFS can take a default uid and gid), otherwise
*
* - the field will be cleared;
*
* - otherwise, if explicitly requested:
*
* - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
* set or if the datum is considered out of date, and
*
* - the field will be filled in and the bit will be set;
*
* - otherwise, if not requested, but available in approximate form without any
* effort, it will be filled in anyway, and the bit will be set upon return
* (it might not be up to date, however, and no attempt will be made to
* synchronise the internal state first);
*
* - otherwise the field and the bit will be cleared before returning.
*
* Items in STATX_BASIC_STATS may be marked unavailable on return, but they
* will have values installed for compatibility purposes so that stat() and
* co. can be emulated in userspace.
*/
#define LTP_DEFINE_STATX_STRUCT(x) \
struct x { \
uint32_t stx_mask; \
uint32_t stx_blksize; \
uint64_t stx_attributes; \
uint32_t stx_nlink; \
uint32_t stx_uid; \
uint32_t stx_gid; \
uint16_t stx_mode; \
uint16_t __spare0[1]; \
uint64_t stx_ino; \
uint64_t stx_size; \
uint64_t stx_blocks; \
uint64_t stx_attributes_mask; \
const struct statx_timestamp stx_atime; \
const struct statx_timestamp stx_btime; \
const struct statx_timestamp stx_ctime; \
const struct statx_timestamp stx_mtime; \
uint32_t stx_rdev_major; \
uint32_t stx_rdev_minor; \
uint32_t stx_dev_major; \
uint32_t stx_dev_minor; \
uint64_t stx_mnt_id; \
uint32_t stx_dio_mem_align; \
uint32_t stx_dio_offset_align; \
uint64_t __spare3[12]; \
};
LTP_DEFINE_STATX_STRUCT(statx_fallback);
#ifndef HAVE_STRUCT_STATX
LTP_DEFINE_STATX_STRUCT(statx);
#endif
* This is the fallback statx that we pass to the safe_statx() syscall.
* The reason why we need it, is that statx struct is constantly changing
* inside the kernel and we need to extend its definition when structure
* changes in order to compile the tests.
*/
struct ltp_statx {
union {
struct statx buff;
struct statx_fallback data;
};
};
#ifndef HAVE_STATX
* statx: wrapper function of statx
*
* Returns: It returns status of statx syscall
*/
static inline int statx(int dirfd, const char *pathname, unsigned int flags,
unsigned int mask, struct statx *st)
{
return tst_syscall(__NR_statx, dirfd, pathname, flags, mask, st);
}
#endif
* Flags to be stx_mask
*
* Query request/result mask for statx() and struct statx::stx_mask.
*
* These bits should be set in the mask argument of statx() to request
* particular items when calling statx().
*/
#ifndef STATX_TYPE
# define STATX_TYPE 0x00000001U
#endif
#ifndef STATX_MODE
# define STATX_MODE 0x00000002U
#endif
#ifndef STATX_NLINK
# define STATX_NLINK 0x00000004U
#endif
#ifndef STATX_UID
# define STATX_UID 0x00000008U
#endif
#ifndef STATX_GID
# define STATX_GID 0x00000010U
#endif
#ifndef STATX_ATIME
# define STATX_ATIME 0x00000020U
#endif
#ifndef STATX_MTIME
# define STATX_MTIME 0x00000040U
#endif
#ifndef STATX_CTIME
# define STATX_CTIME 0x00000080U
#endif
#ifndef STATX_INO
# define STATX_INO 0x00000100U
#endif
#ifndef STATX_SIZE
# define STATX_SIZE 0x00000200U
#endif
#ifndef STATX_BLOCKS
# define STATX_BLOCKS 0x00000400U
#endif
#ifndef STATX_BASIC_STATS
# define STATX_BASIC_STATS 0x000007ffU
#endif
#ifndef STATX_BTIME
# define STATX_BTIME 0x00000800U
#endif
#ifndef STATX_MNT_ID
# define STATX_MNT_ID 0x00001000U
#endif
#ifndef STATX_DIOALIGN
# define STATX_DIOALIGN 0x00002000U
#endif
#ifndef STATX__RESERVED
# define STATX__RESERVED 0x80000000U
#endif
* Attributes to be found in stx_attributes and masked in stx_attributes_mask.
*
* These give information about the features or the state of a file that might
* be of use to ordinary userspace programs such as GUIs or ls rather than
* specialised tools.
*
* Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
* semantically. Where possible, the numerical value is picked to correspond
* also.
*/
#ifndef STATX_ATTR_COMPRESSED
# define STATX_ATTR_COMPRESSED 0x00000004
#endif
#ifndef STATX_ATTR_IMMUTABLE
# define STATX_ATTR_IMMUTABLE 0x00000010
#endif
#ifndef STATX_ATTR_APPEND
# define STATX_ATTR_APPEND 0x00000020
#endif
#ifndef STATX_ATTR_NODUMP
# define STATX_ATTR_NODUMP 0x00000040
#endif
#ifndef STATX_ATTR_ENCRYPTED
# define STATX_ATTR_ENCRYPTED 0x00000800
#endif
#ifndef STATX_ATTR_AUTOMOUNT
# define STATX_ATTR_AUTOMOUNT 0x00001000
#endif
#ifndef STATX_ATTR_MOUNT_ROOT
# define STATX_ATTR_MOUNT_ROOT 0x00002000
#endif
#ifndef STATX_ATTR_VERITY
# define STATX_ATTR_VERITY 0x00100000
#endif
#ifndef STATX_MNT_ID_UNIQUE
# define STATX_MNT_ID_UNIQUE 0x00004000U
#endif
#define SAFE_FCHMODAT2(dfd, filename, mode, flags) \
safe_fchmodat2(__FILE__, __LINE__, (dfd), (filename), (mode), (flags))
static inline int safe_fchmodat2(const char *file, const int lineno,
int dfd, const char *filename, mode_t mode, int flags)
{
int ret;
ret = tst_syscall(__NR_fchmodat2, dfd, filename, mode, flags);
if (ret == -1) {
tst_brk_(file, lineno, TBROK | TERRNO,
"syscall(__NR_fchmodat2,%d,%s,%d,%d) failed",
dfd, filename, mode, flags);
} else if (ret) {
tst_brk_(file, lineno, TBROK | TERRNO,
"Invalid syscall(__NR_fchmodat2,%d,%s,%d,%d) return value %d",
dfd, filename, mode, flags, ret);
}
return ret;
}
#define SAFE_STATX(dirfd, pathname, flags, mask, buf) \
safe_statx(__FILE__, __LINE__, (dirfd), (pathname), (flags), (mask), (buf))
static inline int safe_statx(const char *file, const int lineno,
int dirfd, const char *pathname, int flags, unsigned int mask,
struct ltp_statx *buf)
{
int rval;
rval = statx(dirfd, pathname, flags, mask, &buf->buff);
if (rval == -1) {
tst_brk_(file, lineno, TBROK | TERRNO,
"statx(%d,%s,%d,%u,%p) failed", dirfd, pathname, flags, mask, buf);
} else if (rval) {
tst_brk_(file, lineno, TBROK | TERRNO,
"Invalid statx(%d,%s,%d,%u,%p) return value %d",
dirfd, pathname, flags, mask, buf,
rval);
}
return rval;
}
#endif
